specify the alpha test function
Signature
glAlphaFunc(
GLenum (
func
)
,
GLclampf (
ref
)
)-> void
Parameters
| Variables | Description |
|---|
|
func
|
Specifies the alpha comparison function.
Symbolic constants
GL_NEVER
,
GL_LESS
,
GL_EQUAL
,
GL_LEQUAL
,
GL_GREATER
,
GL_NOTEQUAL
,
GL_GEQUAL
, and
GL_ALWAYS
are accepted. The initial value is
GL_ALWAYS
.
|
|
ref
|
Specifies the reference value that incoming alpha values are compared to.
This value is clamped to the range
,
where 0 represents the lowest possible alpha value
and 1 the highest possible value.
The initial reference value is 0.
|
Sample Code References
The following code samples have been found which appear to reference the
functions described here. Take care that the code may be old, broken or not
even use PyOpenGL.
glAlphaFunc
{GPL3} OpenGL-Programmable
04-vbo.py
Lines:
279
